发布网友 发布时间:2022-04-23 13:20
共2个回答
热心网友 时间:2023-08-19 10:58
Chinese cabbage plays an important part in baskets in China, and so the quality of Chinese cabbage affect directly the vegetable market and people's life.热心网友 时间:2023-08-19 10:58
Chinese cabbage dish in China, which occupies an important position in the basket, its proction affects vegetable market supply and people's life. In order to improve the cabbage proction and resistance, and experiments with liquid nitrogen (- 120 degrees Celsius) in three varieties of cabbage seeds in the process, growth and hardiness test. Results showed that the seed of being treatment group than cabbage growth, Hong Kong black leaves after being processed cabbage cabbage, in cold climates mortality decreases, Select NaiBaiCai no difference in Hong Kong, Short feet yellow shuikou cabbage mortality is reced greatly. Test for the cultivation and breeding of cabbage art provides a strong theoretical basis.